Suction-roll.



.O. H. DOWELL.

SUCTION ROLL. APPLICATION FILED APR.G.1909. RENEWED SEPT. 21, 1911.

Patented Nov. 14, 1911.

3 SHEETS-SHEET 1.

[NVENTOR O. H. DOWELL.

SUCTION ROLL.

AM LIGATION FILED APB.6, 1909. RENEWED SEPT. 21, 1911.

Patented Nov) 14,1911

3 SHEETS-SHEET 2 [N VENTOR WITNESSES U. H. DOWELL.

' SUCTION ROLL. APPLICATION FILED APR. 0, 1909. mmnwnn snr-r. 21, 1911.

' Patented Nov. 14, 1911 3 SHEETS-SHEET 3.

INVENTOR U ITED sTAfr as PATENT OFFICE.

OSGOOD H. DOWELL, OF WASHINGTON, DISTRICT -OF COLUMBIA, ASSIGNOR TO THE" SANDUSKY FOUNDRY TION OF OHIO.

Application filed April e, 1909, serial messages.

To all whom it may concern.

Be it known thatI, Osoooo Downiifl,

a citizen of the United Statcs residiiig at;

W'ashington, in the -District ofji Columbia,

have invented certain new and 'useful lmprovements in Suction-Rolls: and I do here," by declare the following to be a full, clear,

and exact description of the invention, such one wherein the adjustment-is convenient-:-

and the construction of which is simple and practical for manufacture.

My invention embodies the basic principle disclosed in Mr. William H. Millspaughs U. S. Patent No. 895,283, of maintaining air tight contact between the suction box and interior surface of the revolving shell or cylinder at a limited degree of pressure. so as to prevent the box from becoming locked to the cylinder under influence of the suction; which has greatly improved the elliciency of suction-rolls andmade it possible to operate safely with heavy suction or substantial vacuum. In a suction-roll embodying my invention,

'the pressure of contact, between the box and cylinder is determined by. relative radial adjustment, but can be regulated by',a single adjusting instrumentality adapted'to be'manipulated atone end of the suction-roll, preferably at the front end fed convenience of the operator. This is accomplished by supporting one member, either the cylinder or the box. by adjustable elements controlling the relative radial position of the box in the cylinder and adapted to be-simultaneously operated by the said adjusting in immediately to the relative fixed member:

embodiment; the said adjuststrumentality, the latter being' longitudinanny-arranged and connect mediately or.

In. preferred able elements'constihite the cylinder-bearings and they 'arefs'lidably'mounted on pro-' ANIFI COMPANY, OF SANDUSKY, OHIO, A COB!'ORA fiiICTION-BOLL.

.s unich tien of Letters Patent. Patented NOV, 14, 1 911;

Renewed September 21, 1911. vSerialltio; 675,648.

positely inward or outward on opposite slants or inclines to the axis of the cylinder,

whereby the pressure of contact between the box and interior surface of the cylinder-is increased or diminished as the distame between the cyhudcr-bearlngs is varied.

tainingthe pressure of contact, the same being limited by the adjustment of the heads or cylinder-bearings in a direction to r1 :le'ase the weight.

In said embodiment, the cylinder rests upc n the jecting end portions of the box to move op- The invention will now be more fully described witlrreference to the accompanying drawings, which are to betaken as a part of this specification, and then more urticularly pointed out in the appended c aims In said drawings, Figure 1 1s a'longit'u dinal verticalfsectioh of a suction-roll embodying my invention, in what- I now consider 2 pre-. ferred form. Fig. 2 is a cross section 0 5 line 2-2 of Fig. 1. Fig. 3 is a vertical longitudinal section through one end of the roll showing a modification of Fig. 1. Fig. 4 is a longitudinal vertical section of another -form of suction-roll embodying my inven tion. Fig. 5 is a front end elevation thereof. Fig. 6 is a longitudinal vertical. section of a modification of Fig. 3, and in which the suction-box rests on the bottom of the interior surface-of the cylinder and bears thereupon of its own weight.

tudinal-vertical sections of other embodi-,

Figs. 7 and 8 are longiments of my invention.

A denotes the roll-supports or, stand irds;

B the suction-box and C the revolving fo-.

raminous shell or cylinder.

It is understood that the open face of tlie box is provided with suitable packing; for contact with the interior surface of th1 cylindenand is in communieation'iii any suitable manner with a siiction-pump or exhaust 1 apparatus. In the. illustration the box shown having ta ular extensions or end pol.

titvmfl adapted for coupling with the pifioe connect-ions.

lar extensions or'end-portions D being rigidly mounted onthe-standards A. Said .end portionsmay be considered as arms suporting thev box proper. -The cylinder C iias its bearings on circular elements or heads E, which are axially movable within the cylinder and are slidably mounted upon the end portions or arms D, the latter being oppositely inclined. As shown more clearly in Fig. 2, the heads are providedwith correspondingly inclined guide openings e, slid- .ably fitted on the inclined arms; in lieu of which there may be' other forms of inclined is ormay be swiveled in the front standard manipulating device.

A, or it might be swiveled in :1 lug on the bottom of the box or the arm D. The swivelconnect'ion, as represented, allows the rod to rise and fall with the heads E and the cylin' der journaled thereon; a being a short vertical slot between the bolt-head f and a collar f afiixed'o I of the slot. Instead of the bolt-head f, for adjusting the rod by means'of awrench, the rod maybe operated by any other suitable heads E are held in fixed relation and prevented from axial displacement by the ad- 'justing rod, and are prevented from rota tion by the end portions or arms D of the box. By turning the rod F, the heads E will be simultaneously moved in opposite directions, riding up or down on the oppositely inclined arms D of the suction-box, and thereby lifting'or lowering the cylinder therewith, according to the direction of axial movement-of the heads. The bearing pressure of the cylinder upon the box may thus be regulated to the exactdegree desired. I

The shell or cylinder C may he held against endwise movement by any suitable means. For example, thrust-collars may be placed at opposite sides" of the drive-gear G, as shown in Fig. 1, where the rear standf ard is bifurcated to provide 'said thri'istcollars, the gear being secured on the. cylinder between the two members-of the stand.- ards. Other suitable arrangements would be to have the opposite thrusts of the cylind r sustained by the opposite standards, or thrust-collars may berevolubly fitted to the ends of the cylinder and arranged for radial or up'and down movement on the arms D of the suction-box.

As shown in Fig. 2. the vertical dimon;

sions of the guide-openings a in the heads E.

are greater than the vertical dimensions of the guulcsr-r arms D of the suction-box,

n the rod at opposite sides 1 I 'which the .cylinder-bearin s are fixed-and It is noted that theleaving a space or clearance,-as shown, in,

each head; so that the heads or cylinderbearings, together with the cylinder, are capable of independent up and down movement,- -and the cylinder rests upon the suction-box except in so far'as its weight is relieved by the adjustment of the heads on the arms D. I consider this a preferred construction for the reason-that the-box is maintained .in contact with the cylinder under yieldable pressure, that is, the cylinder being free to rise bears yieldingly upon the box; I do not confinemyself, however, to anarrangement wherein the pressure of'cont'act is yielding,

for itis. obvious'that the guide-ways e may be formed to fit the guides or arms D so as to avoid independent radial movement, in

which case the radial adjustment of the cylinder, either inward .oroutward, would be positively efiected'by anddepend upon the sliding contactbetween the guides and guideways for both directions of-axial adjustment of the heads orcylinder-bearings By radial adjustment of the cylinder or;

cylinder bearings,,I mean adjustment thereof which results-in relative adjustment of the'suction'box radially of the cylinder;

Fig. 3 shows a modificationof Fig. 1, in

the suction-box-is the move lemernber. The

cylinder has its bearings-in the standards A, and the heads E, axially movable in the the cylinder-bearings; or in the cylinder, slidably support the box for positiveadjustment' thereof up and down or inward or outward as the heads are axially adjusted,

the construction being 'otherwise substantially similar to that shown in Fig. 1. In

this view, however, I show the guides or arms D inclined upward, and the right rod 1 transposed. The swix'nl-connectio'n 10s. hand and left hand screws of the. adjusting of the adjustingrod to n. bracket or armprojecting from thefrorit standard or bearlng.

Fi s. 4 and 5 show another construction in which the cylinder has fixed bearingsin the standards A, and the .suction-lioxis the movable member. In this case, the adjustable elements which support the box are in-- arms D of the cylinder are in this instance shown straight itfstead of inclined. and the heads F2 are provided with guide-flanges or gibs e working'in lateral ways or grooves in the end portions of the box; .theguides at the two endsof the machine being oppositcly inclined. The heads E are connected by the adjusting rod Fill the manner her inbefore explained for controlling therelative radial adjustment between the box and cylinder b the axial adjustment of the heads.

Fig. 6 shows a modification of lig's. 4 and 5 wherein the suction-box is inverted and bears upon the bottom of the shell or cylinder, as in cases where the wire or felt, or the sheet 'of paper, passes under the suction-roll. Otherwise, the. construction is substantially the same as in Fig. 4, except that the guidegrooves in the sides of the arms l) are wider than the gibs or guide-flanges e"', so as to give clearance and allow the suction-box to ear of its own weight upon the interior surr face of the cylinder, save as the weight'is relieved by the adjustment of the heads E in a direction to raise the .box from said surface. p a

It will lJG-(lbSCl'VQd that in Fig. 1 the axially-adjustable elements supportthe cylin der and ride upon inclined hearings on the box, or rather the arms D of the box, which thus support said-elements; while, in Figs. 3, at and 6, the axially-adjustable elements support the box and provide inclined bcarhings therefor. In these latter figures, how- 0 inder upon the box by lugs,- except in so ever, the axially adjustable elements are slidablyfitted .to both v members of the suction-r0ll, that is, the cylinderand thebox, being actually so arranged in f Fig. 3 and substantially so in Eigs. 4: and 6, considering the cylinder-bearings as a necessary complement of the cylinder; i In contradistinction from the preceding figures, 'Ishow in'Fig. 7 an embodimentof my invention wherein the axially-adjustable elements, bein slidably fitted to the box, support and a so provide inclined bearings for the cylinder. In this construction, the .axiallymd'ustable elements consist of heads or blocks l? having inclined tops and bottoms, and working in correspondingly shaped openings or slide-ways in annular cylinder-bearings C, the.latter being supported on saidheads. The said heads E" are also provided with slide-ways or openings slidably fitted on the end portions or arms -D of the suction-box for movement parallel with the axis ofthe cylinder, the'said arms I) being straight in this instance, and mounted on;the standardsA. The hEads E and their slide-ways in the'cylinder bearings C are oppositely arranged at thetwo'ends of the c linder, and said heads E' are con; nected by an adjusting rod -F in the same manner as in the other-constructions, for moving said heads simultaneously in oppo- "sitc directions. It will be seen that the cylits own weight and the added weight of the cylinder-bean far as the weight is relieved by the, heads E, which can' be ad- 'justedJ-as desireditoxaise -is in communication with the.

and hence I' p aslimiting 'ir'ryself to thespccific construcor lower the cylin-l box to any degree desired. The'hcads E may occupy the full space of their slide-ways 1n the cylinder-bearings, but preferably clearance is provided between the bottom inclines of the heads and-the l, ottoms' of said slide-'ways, 1n order to allow nn-independent lifting of the cylinder and thus have It? bearing-pressure upon the box yieldable.

Fig. v7f may, therefore, be considered as a modifie'catiofi' of Fig. 1. The" cylinderbearings Ctakethe end thrust of the c lmder, and said bearings are .connecte by suitable tie-rods C.

In 8, I show a construction wherein the slanting bearings or supporting surfaces between the axially adjustable elementsand the radially movable member of :heapparatus are inclined in the same direction instead of opposite directions at the two ends of the cylinder. In this construction, the suction-box is shown as the radially movable member, the cylinder being jouinaled in hearings in the standard A. The axiallyadjustable elements consist of heads E slidably mounted in the standards or cylinder-bearings in the same manner as: in F i 's. t and 5, and having inclined gibs or gui ellang es e working. in inclined flanges e on the sides of the arms D of the suction-box. Theh'eads E are connected by the adjusting which in this instance. is longitudinally'movable and has a screw 1 threaded .-or tapped in an arm rising from the front standard A, and roi ided witha bolt-head f for screwing sai rod to more it rearward and forward to adjust the headsand thereby adjust the box with relation to its'bearing pressure against the interior surface of the cylinder. serted through'the heads E with collars at opposite sides so that the latter will be positively adjusted with the endwise adjustment of the rod. To prevent longitudinal displacement of the suction-box, its front arm D" has a vertical sliding connection onfthe arm A rising from the front standard, for example, a T- shaped guide worki dicated at D; or, in lieu of this construction, the suction-box ed at both ends of the apparatus. Instead of the tubular end-portions D-of -the boxin the preceding figures, the box in Fig. 8 has closed ends, as indicated in dotted lir es, and pum by a pipe C connected medially with the box.

" I ha e illustrated several constructional embtl diments of my invention by way of examp e, fro n'wvhich it will appear that the specific arrangement and the details of construction ms;

and provided" 0 not desire to be understood tionshown, orto any atti lar form of'em- The rod F is shown loosely in-' may be "ertically guid-.

of tlie heads ng in guideways, as int be modified in various ways,

In the following claims, terms referring 'to connection or. engagement" between the axially-adjustable elements and the suctionbox or the cylinder are to be construed to iiiclude either direct or medial connection or engagement. For example, the axially-ad justable elements have inclined sliding engageirient directly with the box in Fig. 1 and medially through the cylinder-bearings with the cylinder in Fig. 7. The expression .f inclined sliding engagement and other expressions of similar import are to be understood as including any equivalent means, and the term cylinder is to be construed as including any form of shell'tliat may be used in place of atrue cylinder.

Havingthus described my invention what for relative radial adjustment and are withheld from contact beyond a limited degree predetermined by such adjustment, in combination with a longitudinal adjusting inst-rumentality, and means operated thereby for effecting such adjustment.

3. A suction-roll wherein the suction-box and cylinder are arranged for relative radial adjustment and having devices con trolling such adjustment and withholding the cylinderand suction-box from contact beyond a determined degree and a longitudinal operating instrumentality therefor.

4. Ina suction-roll, the combination with the cylinder and suction-box therein, of adjustable elements for forcing the box and interior surface of the cylinder in contact and limiting the degree of such contact, and

single operating instrumentality for adi usting said elements.

5. In a suction-roll, the combination with the cylinder andsu'ction-box therein,- of ad: justable elements operativelyconnected with one of them for withholding the box and interior surface of the cylinder from contact beyond a predetermined degree, and means for simultaneously adjusting said elements.

6. In a suction-roll, the combination with the cylinder and suction-box thereii'i, of

axially adjustable elements having a fixed radial relation to one of them and operatively-connected with the other for radial adjustment, whereby the pressure of contact between the box and cylinder is regulated by adjustment of said elements.

7. In a suction-roll, the combination with and" cylinder is ell'eeted contact beyond 'a limited-de ree.

the cylinder and suction-box therein, of adjustal'ilcelements having a fixed relation to the axis of the cylinder and slidably-connected to the box ata slant to said axis, whereby radial adjustment between 'thelbox by adjustment of said elements.

8. In a suction-roll, the combination wit the cylinder and suction-box therein, of movable supports for one of them, the position.of wh ch supports determinesand limits the pressure of contact between the box and cylinder, and adjusting means for moving said supports simultaneousl 9. In a suction-roll, i'llB'CfOl'flblIlfltlOIlWlth E the cylinder and suction-box therein, of adjustablesupports for one of them, and a longitudinally-arranged instrumentality operatively-connected with and adapted for adjusting both supports. 8

10. In a. suction-roll, the combination with the cylinder and suction-box therein, of adjustable supports for one of them, the position of which supports determines and limits the pressure of contact between the 9 box and cylinder, and a longitudinal operat- ,ing rod connected with .and adapted for shifting said supports simultaneously.

11. In a suction-roll, the combination with the cylinder and suction-box therein, 9. of adjustable supports for one of them controlling the radial position of the box relative to the cylinder, whereby they. are withheld from contact beyond a degree permitted by said supports and a longitudinal adjusting rod therefor connecting said supports 'withthe fixed member.

12. In a suctionroll, the combination with the cylinder and suction-box therein, of axially-adjustable supports for one of them having inclined bearings, whereby radial adjustment is effected by axial adjustment of said supports, said supports withholding the suct-ion-box and cylinder from 11 13. In a suction-roll, t e combination with the cylinder and suction-box therein, of axially-adjustable supports for one of them having oppositely-inclined bearings, and operating means for adjusting said supports simultaneously in opposite directions, said supports with olding the suction-box and cylinder from contact; beyond a limited degree.

14. In a I suction-ro1l,-' the combination with the cylinder and suction-box therein. of axially-adjustable supports for one of them having inclined bearings, and operating means connected with said supports for adjusting them simultaneousl said sup-. ports withholdins the suctionx and cy1 inder from contact beyond a limited degree.

15. In-a SllCtl'.)I1-l0ll, the combination with the cylinder and suction-box therein, of axially-ad ustable supporting means for one of them, and means whereby radial adjustment between the box and cylinder is effectcd by adjusting said supporting means, said supporting means keeping the suctionbox and cylinder from contact beyond a limited degree.

16. In a SUCtlOIbIOll, the combination with the' cylinder and suction-box therein arranged for relative radial adjustment, of axially-adjustable supports for one of them having sliding engagement with one of them at inclines to the axis of the cylinder, such engagement withholding the suction-box and cylinder from contact beyond a determined degree.

'17. In a suction-r0ll, the combination with the cylinder and suction-box therein arranged for relative radial adjustment, of oppositely-movable axially-adjustable supports for one of them having sliding engagement with one of them at oppositel slanting inclines, such engagement wit-Iiholding the suction-box and cylinder from contact beyond a determined degree.

18. In 'a suction-roll, the combination with the cylinder and suction-box therein arranged for relative radial adjustment, of oppositely-movable axially-adjustable supports for one of them having slidin engagement with one of them at oppos1telyslanting inclines, and an adjusting rod connecting said supports and havin a righthand screw in one and a left-hand screw in the other.

19. In a suctionroll, the' combination with the cylinder and suction-box therein, of axially-adjustable supports for one of said members slidably'fitted to both of them, there bcin inclined sliding engagement between sai supports and one of said members, whereby they are restrained from con-.

tact beyond a limited degree.

20. In a suction-roll, the combination with the cylinder and suction-box therein,

of axially-adjustable supports for one of them having inclined sliding engagement with the box, whereby they are restrained from contact beyond a limited degree.

21. In a suction-roll, the combination with the cylinder and suction-box therein arranged for relative radial ad'ustment, of axially-adjustable elements slidably-fitted to the box for controlling such radial ad- 'ustmcnt, and thereby limiting the contact etwcen the suction-box and cylinder.

22. In a, suction-roll, the combination with the cylinder and suctidn-box therein, of axiall. -adjustable elements having inclined slit ing engagement. with one of them for limitin the pressure of contact between the box an interior surface of. the cylinder-i with said elements.

supports 23. In a suction-roll, the combination with the cylinder and suction-box th zrein, of axially-adjustable contact-limiting elements simultaneously-movable in opposite directions and having sliding engagunent with one of said members at opposite in- 0111168.

24. In a suction-roll, the combiration with the cylinder and suction-box thiuein, arranged for relative radial adjustuunt, of oppositely-movable axially-adjustable elc .mcnts for regulating such radial adjust ment, and an adjusting rod connecting said elements and having means for shortlning or extending its length between them.

In a suction-roll, the combiration with the cylinder and suction-boxtl'erein arranged for relative radial adjustment, of oppositely-movable axially-adjustable elements for regulating such radial adjustment, and an adjusting rod having right .and left hand screw connections witi the respective elements.

r 26. In a suction-roll, the combir ation withthe cylinder and suction-box therein, of cylinder-bearings adjustable radially and axially and slidably mounted on inclir es on the box, whereby the cylinder can be adjusted to rest upon the box or to ha are its weight relieved.

27. In a suction-roll, the combir ation with the cylinder and suction-b0x therein, of radiall -adjustable cylinder-bearings, or: said bearings, said sup ports and said bearings having inclined bearing surfaces in slidable contact, there being provision for relative axial adjustment lJQ';\VO0Il said supports and said bearings.

28. In a suction-roll, the combiration with the cylinder and suction-box therein, of axiallyndjustable elements snpprrting one of said members and adapted ti lift the same radially by inclined plane action, whereby said member canbe raised and lowered by adjustment of said elements so as to take its weight or allow it to rest upon the other member.

29. In a suction-roll, the combiration 'withthe cylinder and suction-box therein,

one member being radially-movable and adapted to rest upon the other and supports for the movable member having inclined sliding engagement therewith, there a-xia able member.

In testimon whereof I afiix my sign iture, in presenceo two witnesses.

' 1 OSGOOD H. DOWELL.

Witnesses: I

JOEEPH O. STACK, MARY A. CLARK.

being glOVlSlOIl for relative adjustment ly tween said supports and said'mov- 

